Possession is a nasty ability. It has its place in roleplaying, allowing a monster to take over one of the player characters (PCs) and use them to deliver messages. It is also very powerful in combat. The best-case scenario for the players is having one of their number removed from the field. Fortunately for players, possession typically removes most of a PC’s abilities. See the text from the ghost stat block below.
Using Possession in Combat
Most ways of taking control of a player prevent you from doing anything to directly harm the player. This is not true of possession. You can walk the player right into lava if you have some handy. By far my favorite use is attempting to drown a player. Under normal circumstances, it’s very hard to drown any creature in combat. With a possessed creature, it just as simple as dunking them in water and having them breathe out.
|Agony the Ghost||4||Light of Xaryxis|
|Caradoc||8||Dragonlance: Shadow of the Dragon Queen|
|Chief Kartha-Kaya||4||Storm King’s Thunder|
|Eigorn’s Sprit||4||Storm King’s Thunder|
|Gremorly’s Ghost||9||The Book of Many Things|
|Hashalaq Quori||9||Eberron: Rising from the Last War|
|Kalaraq Quori||19||Eberron: Rising from the Last War|
|Leedara||4||Dragonlance: Shadow of the Dragon Queen|
|Nass Lantomir’s Ghost||6||Icewind Dale: Rime of the Frostmaiden|
|Rose Durst||3||Curse of Strahd|
|Starlight Apparition||5||Boo’s Astral Menagerie|
|Thorn Durst||3||Curse of Strahd|
|Tsucora Quori||7||Eberron: Rising from the Last War|
|Yakfolk Priest||4||Storm King’s Thunder|
|Yakfolk Warrior||3||Storm King’s Thunder|
The now that you’ve to some nasty monsters to take control of your player’s characters, why not find some nice magic items they can protect themselves with?